Grease-cup



(NoMoaeLY H. D. MENTZEL.

GRBASEIGUP.V No. 381,157. n' Patented Apr. 17, 1888.

HENRY D. MENTZEL, OF BALTIMORE, MARYLAND.

GREASE-CUP.

SPECIFICATION forming part of Letters Patent No. 381,157,1ated April 17, 1888.

i Application filed May Q4, i987. Serial No. 239.188. (No model.)

To aZZ whom, may concern.-

Be it known that I, HENRY D. MnN'rznr., of the city of Baltimore, and State of Maryland, haveinvented certain Improvements in Grease- 5 Cups, of which the followingis a specification.

This invention relates to certain improvements in Letters Patent No. ;,706, granted to me on the 28th day of August, 1377, for certain improvements in blaelringboxes. In

rc the said Letters Patent I describe an interiorly-threaded box for holding semifiuid bodies, having a perforated bottom and a threaded plunger or plug which forms the top of the box. rIlhis plug, when screwed into the box, r 5 expresses its contents through the perforations in the bottom. y

, In using'the invention as patented I find that the wooden plug in drying shrinks and becomes loose in the shell. Consequently when the box is used to hold grease, the couteuts, as pressure is applied thereto, will exnde through the space between the plug and the side ofthe shell of the box. To avoid this I cover the wooden plug with metal; or, in other words, I form the plug of sheet metal and provide it with a wooden handle whereby it may be turned. By this means I aml enabled to produce a tightjoint and at the same time avail myself of the wooden handle,which isa nolrconductor of heat, and therefore well adapted for use when the invention is to be applied to a steamcylinder and becomes healed.

My invention also relates to the application to the bottom ol' the box ol' a threaded nozzle by means of which the cup can be applied to machinery in general.

In the further description of the said invention which follows reference is made to the accompanying drawings, forming a part here- 40 of, and in whieh- Figure l is an exterior side View of the im proved grease-cup, and Fig. 2 is a sectional` view of the same.

Similar letters of reference indicate similar part-s in both the views.

In the said drawings, A is the cylindrical shell of the box or cup. This easing or shell is interiorly threaded, preferably throughout its entire length, as-shown, and with aview to cheapness I make the shell of thin sheet metal, 5o and form the thread by means of ya suitable tool which is pressed against the exterior of the shell as the same is revolved.

B is the plug or plunger, also formed of sheet y metal, and threaded in the same manner as .the shell. This plug has an imperforatebottom, as shown, and is fitted with a wooden handle, C, which is inserted in thel plug and secured therein in, any suitable manner, but

preferably'by small nails a, which are driven 6o f in from the outside, as shown.

The handle C may be threaded or not, as

preferred, and when it is not threadedfas illustrated, I prefer to make the upper end of ythe hollow plug devoid of a thread, so as to pro- 6 5 vide a good bearing for thewooden handle at the point where the nails are entered.v

l) is a threaded nozzle at the bottom of the shell, by means of which the cup is'seeured to the machine to be lubricated.

`I elaim'as my invention- A grease-holding cup, which consists' in an interiorl y -threaded shell,an exteriorlythreaded hollow plug or plunger, and a handle which is inserted in the said plug, all'combned sub- 75 stantially as and for the -purpose specified.

HENRY D. MEN TZEL.

Witnesses: y

JN0; T. hLiDDoX, J-No. SANDEHSON, Jr. 

